1. If you forget that the card is locked, the password or password error is locked, and other improper operations, you can directly take the tax control panel to the tax bureau and find the corresponding window to solve it. Generally, there is no need to prepare any information.

2. If the enterprise tax is locked abnormally, you need to find out the abnormal reason first. You can call the competent tax authority to ask the reason and the solution before unlocking it.